ML20058B167
| ML20058B167 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 02/27/2020 |
| From: | Talen Energy |
| To: | Division of Operating Reactor Licensing |
| Goetz, Sujata | |
| References | |
| Download: ML20058B167 (8) | |
Text
Susquehanna Steam Electric Station Pre-Application Meeting February 27, 2020 License Amendment Request to Create an Action for an Inoperable Manual Synchronization Circuit
Meeting Purpose
- Describe a future license amendment request
- Establish a common understanding of the scope of the request
- Establish a common understanding of the schedule
- Obtain NRC feedback
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Proposed Changes
- Creation of a new Condition, Required Action, and Completion Time in LCO 3.8.1
© Talen Energy 3
Reason for Proposed Change
- Requires a dual unit entry into LCO 3.0.3 when inoperable
- Required Action is not commensurate with the overall risk of the Condition
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Basis for the Proposed Change
- Automatic transfer and loading capabilities are not impacted by inoperable circuit
- All analysis assumptions in Chapters 6 and 15 of the FSAR remain valid
- There is no conflict between manual synchronization circuit and automatic transfer logic for representative situations
© Talen Energy 5
Basis for the Proposed Change (cont.)
- 14 day Completion Time commensurate with Completion Times for inoperable RCIC in LCO 3.5.3
- Uncredited function (RCIC and manual transfers) is lost
- Credited function (HPCI and automatic transfers) remains unaffected
© Talen Energy 6
Summary
- Create new Condition in LCO 3.8.1
- Eliminates dual unit entry into LCO 3.0.3
- Automatic transfer capabilities maintained with inoperable circuit
- Completion Time commensurate with RCIC
- Expect to submit by early April 2020
© Talen Energy 7
List of Acronyms 10 CFR - Title 10, Code of Federal Regulations DG - Diesel Generator ESS - Emergency Safeguard System FSAR - Updated Final Safety Analysis Report HPCI - High Pressure Coolant Injection kV - Kilovolt LCO - Limiting Condition for Operation RCIC - Reactor Core Isolation Cooling
© Talen Energy 8